The left-hand side of one of the various cross-differential relationships that can
be obtained from the
Gibbs adsorption equation when only one
chemical potential(
)
is considered as
variable, viz.
where

is the potential difference,

is the temperature,

is the pressure,

is the
surface excess and

is the
charge density.
Source:
PAC, 1986, 58, 437
(Interphases in systems of conducting phases (Recommendations 1985))
on page 446
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.